Results 41 to 50 of about 1,686 (178)

A Low‐Power Radioisotope XRF Spectrometer for Detection of Light Elements on Planetary Missions

X-Ray Spectrometry, Volume 55, Issue 5, Page 721-729, September/October 2026.
ABSTRACT Current X‐ray spectrometers for in situ geochemical analysis on planetary missions typically rely either on X‐ray tubes, which demand electrical power and add mass and thermal complexity, or on alpha particle X‐ray spectrometers (APXS) that use rare 244 Cm sources, and come with severe concerns on radiation safety and isotope availability.
Leandro Silveri, Artem Knyazev, Hashem Alaidaros, Maryam Manzoor Amanullah, Zach Ioannou, Tengiz Ibrayev, Danish Khan, Sara Leardini, Laura Manenti, Simi Maria Emilia Mangani, Safa Naseem, Sandhya Sharma, Sara Trevisan, Alia Zino, Francesco Arneodo   +14 more
wiley   +1 more source

Burn Severity as a Driver of Multi‐Year Increases in Gross Primary Production and Solar‐Induced Fluorescence Following a Wildfire in Arctic Tundra

AGU Advances, Volume 7, Issue 6, September 2026.
Abstract While climate‐driven increases in wildfires are altering the composition and function of Arctic ecosystems, the impact of burn severity on longer‐term changes in community composition and ecosystem fluxes remains less understood, creating uncertainty in estimates of the biome's carbon storage capacity.
Jinhyuk E. Kim, Rebecca C. Scholten, Rachel Badzioch, Salvatore R. Curasi, Ian Klupar, Alexa A. Salinas, Michael L. Goulden, James T. Randerson, Edward B. Rastetter, Adrian V. Rocha   +9 more
wiley   +1 more source

BPASS Stellar Models in DataFrames

, 2020
This data set is made of 26 binary files (.pckl) that contain pandas DataFrames compiling all the BPASS stellar models for the fiducial IMF (img135_300 - see BPASS manual for more info or contact hfstevance@gmail or @sydonahi on Twitter).
Heloise Stevance
core   +1 more source

An Operational Daily‐Filtered Dominion Radio Astrophysical Observatory F10.7 cm Solar Radio Flux Product

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract The F10.7 solar radio flux density, or F10.7, is a disk‐integrated measure of the Sun's total emission at 10.7 cm (2.8 GHz) and is a widely‐used proxy of solar activity. F10.7 emissions primarily originate from the Sun's upper chromosphere and lower corona. High‐frequency, transient “radio bursts” can dramatically increase the magnitude of F10.
C. Kuester, O. M. Coddington, C. Lindholm, C. L. Peck   +3 more
wiley   +1 more source

Laboratory astrophysics and microanalysis with NTD-germanium-based X-ray microcalorimeters

, 2000
With the ability to create cosmic plasma conditions in the laboratory it is possible to investigate the dependencies of key diagnostic X-ray lines on density, temperature, and excitation conditions that exist in astrophysical sources with X-ray optics ...
Madden, N, Murray, S, Beeman, J, Bandler, S, Schnopper, H, Porto, J., Landis, D, Haller, E, Silver, E, Takacs, E, BARBERA, Marco, Tucker, G, Gillaspy, J   +12 more
core   +1 more source

High Resolution Field Observations of Shoreward Sediment Transport Within the Wave Bottom Boundary Layer on a Sandy Beach

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract We introduce a data archive containing the first highly resolved profiles of velocity and sediment concentration within the wave bottom boundary layer (WBBL) on a natural sandy beach. Resolution of the thin WBBL was made possible by deployment of a unique “Multi‐Frequency Doppler” (MFDop) bistatic acoustic profiling instrument on an Oregon ...
Gregory W. Wilson, Jenna Hare, Stephen M. Henderson, Richard A. Cheel, Alex E. Hay   +4 more
wiley   +1 more source

Observational astrophysics

, 1995
Combining a critical account of observational methods (telescopes and instrumentation) with a lucid description of the Universe, including stars, galaxies and cosmology, Smith provides a comprehensive introduction to the whole of modern astrophysics ...
Smith, Robert C, Robert C Smith (7491836)   +1 more
core  

Assessing SWOT's Measurement Capabilities in the Complex Paraná River

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Estimating water surface elevation (WSE) is crucial for understanding hydrological processes; however, many rivers remain insufficiently monitored due to the limitations of in situ gauge networks. The Surface Water and Ocean Topography (SWOT) mission, equipped with Synthetic Aperture Radar technology, enables global monitoring of WSE with high
E. Walker, C. López Weibel, R. Szupiany, V. Venturini, K. Oberg, J. T. Minear, C. M. García, M. Monserrat   +7 more
wiley   +1 more source

A Solar Analog Model for Decrease in Far Ultraviolet Irradiance Under a Grand Minimum

Earth and Space Science, Volume 13, Issue 9, September 2026.
Abstract Solar analog field stars having a range of magnetic activity can provide an estimate of solar spectral irradiance (SSI) variability relevant to understanding the Sun's influence on terrestrial climate. This approach is particularly useful for far ultraviolet (FUV) irradiance that cannot be observed from the Earth surface.
D. Lubin, C. Melis, D. Tytler
wiley   +1 more source

The SPIDER CMB Polarimeter [PDF]

, 2012
SPIDER is a balloon-borne millimeter-wave telescope designed to study the polarization of the Cosmic Microwave Background (CMB). SPIDER will map 10% of the full sky with degree-scale beams to search for the distinctive inflationary gravitational wave ...
Trangsrud, Amy Ruth
core   +1 more source